Security & trust

Built to be audited, not just believed.

VerityOS exists to make numbers verifiable — so its own security has to hold to the same standard. This page is our posture in plain English: controls mapped to the OWASP Top 10, the OWASP LLM Top 10, CSA Cyber Essentials, and ISO/IEC 27001 control families, with PDPA underneath — and the honest list of what is still in progress.

Enforced in code and in the database

The controls are architecture, not policy PDFs.

Six controls do most of the work. Each one is built into how the product runs — which means an auditor can check it, not just read about it.

Isolation

Tenant isolation in the database itself

Every client organisation is a separate workspace, enforced with database-level row security — not application code that can be bypassed. One tenant can never read another's rows, even if the app layer fails.

Residency

Singapore-region hosting

Data, auth, and file storage run on certified, AWS-backed managed infrastructure in the Singapore region (ap-southeast-1), encrypted in transit and at rest.

Integrity

Append-only, hash-chained vault — anchored outside our reach

Emission entries are never updated or deleted; corrections are visible reversals, and each entry stores the hash of the one before it. At report finalization the chain-head fingerprint is printed in your report and timestamped by an independent RFC 3161 authority — so tamper-evidence holds against everyone, including us.

AI output

AI output is never trusted

Every AI extraction is schema-validated server-side before it can touch the database, then held for a named human's approval. This is also the primary defence against prompt injection hidden in an uploaded document.

Least privilege

Least privilege by construction

Invite-based access with distinct admin and member roles. No service-role key ships in the application; every request runs with the caller's own permissions.

Abuse controls

Hardened ingestion path

Distributed rate limiting on the AI endpoint, magic-byte file-type sniffing on uploads, per-file content hashing, and structured error logging on every failure.

PDPA & governance

The paperwork exists — and you can ask for it.

Personal data in VerityOS is limited and boring by design: contact details from our forms, account details of users, and whatever names appear on the bills you upload. Here is the control set around it.

Data-protection policy

What we collect, why, where it lives, and how long we keep it — PDPA-aligned, published in plain English.

Sub-processor register

Every third party that touches data is named in the register — our infrastructure providers and our AI provider (Anthropic) — available on request. Client data is not used to train AI models.

Data Processing Agreement

A DPA template is available for enterprise and consultant engagements — ask and we send it.

Incident-response plan

A written plan with roles, timelines, and notification duties — including PDPC notification where a breach meets the threshold.

Right to erasure

A hard-delete path exists for client organisations — erasure is real deletion, gated and logged, not a hidden flag.

Responsible disclosure

Found something? Report it through the contact form and it goes straight to the accountable owner. We'd rather hear it from you than read about it.

AI security

The AI is caged on purpose.

The model does one narrow job — read a document, propose structured figures — and nothing it says is trusted: schema validation rejects malformed output server-side, a named human approves every figure before it reaches the vault, and the model holds no tools, no database access, and no autonomy. We follow the OWASP LLM Top 10, and our full AI governance posture — the IMDA framework mapping, the ISO/IEC 42001 alignment, and what we deliberately don’t claim — has its own page.

Calibrated honesty

What’s still in progress.

A security page that lists only strengths is marketing. These are the open items, stated plainly — the same way we state them to assessors.

The open items

  • A third-party penetration test (CREST-certified, OWASP Top 10 scope) has not yet been completed — it is a planned procurement item, and we will publish the attestation when it lands.
  • We are working toward the CSA Cyber Essentials mark; we do not hold it yet.
  • Our controls are mapped to ISO/IEC 27001 control families — mapped to, not certified against. We say which, always.

What that means for you

  • The controls that are hard to retrofit — database-level isolation, the append-only vault, server-side AI validation, Singapore residency — are already built. The remaining items are external attestations, and they are scheduled, not hand-waved.
Ask us the hard questions

Bring your security checklist to the demo.

Procurement questionnaire, DPA request, sub-processor questions — we answer them directly, in writing. That’s the point of the product.